A HOT PURSUITbrings agents Hanna and Callen (Chris O’Donnell, left, and LL Cool J) of “NCIS: Los Angeles” to the islands to work with Danny (Scott Caan) on “Hawaii Five-0,” at 10 p.m. on CBS.

SERIES

How I Met Your Mother: A baby shower for Lily and Marshall (Alyson Hannigan, Jason Segel) sends the dad-to-be in a panic as he realizes his child’s arrival isn’t far off (8 p.m. CBS).The Voice: Eight vocalists compete in this new episode (8 p.m. NBC).Gossip Girl: Suspecting that Jack and Diana (Desmond Harrington, Elizabeth Hurley) share a huge secret, Chuck, Nate, Blair, Serena and Lola (Ed Westwick, Chace Crawford, Leighton Meester, Blake Lively, Ella Rae Peck) join forces to find out what it is (8 p.m. KTLA).Bones: Brennan (Emily Deschanel) is apprehensive when her father (Ryan O’Neal) offers to baby-sit her baby in this new episode (8 p.m. Fox).2 Broke Girls: Peach’s (Brooke Lyons) socialite friend hires Max and Caroline (Kat Dennings, Beth Behrs) to supply the cupcakes for her daughter’s first birthday party in this new episode (8:30 p.m. CBS).Two and a Half Men: In an odd but enjoyable bit of casting, Oscar winner Kathy Bates guest stars in this new episode as the ghost of the late Charlie Harper, who visits Alan (Jon Cryer) in the hospital (9 p.m. CBS).Hart of Dixie: When Wade (Wilson Bethel) can’t find anyone to be his partner in a race, he swallows his pride and asks Zoe (Rachel Bilson) in this new episode (9 p.m. KTLA).The Pitch: After a sneak preview earlier this month, this unscripted series about the staffs at four real advertising firms premieres (9 p.m. AMC).Castle: Castle and Beckett (Nathan Fillion, Stana Katic) investigate the murder of a man who was found with human bite marks on his body, and a witness swears it was the work of a zombie. Jon Huertas and Penny Johnson Jerald also star in this new episode (10 p.m. ABC).